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Metric Size Standard Miniature Ball Bearings 691x

Metric Size Standard Miniature Ball Bearings 691x

The 691x is a compact miniature ball bearing with a 1.5mm bore and 5mm outer diameter, crafted from sturdy chrome steel. It supports radial loads up to 32 lbf and can spin at speeds up to 85,000 RPM.

Its open design simplifies lubrication, while the stainless steel cage ensures durability. With a radial clearance of 0.002mm to 0.013mm, it offers smooth operation.

This bearing is ideal for small devices like precision instruments or model-making tools where space is limited. It performs reliably in temperatures from -30°C to 110°C.

Weighing just 0.2g, it’s lightweight yet robust. Compliant with RoHS and REACH standards, it’s a safe choice for various applications.

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Product Parameters

  • Part Number 691x
  • Brand TFL
  • Interchangeable EZO
  • Bore Dia 1.5 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 5 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 2 mm
  • Width Tolerance -0.12mm to 0
  • Ball Qty 6
  • Ball Dia 1.0000 mm
  • Radial Clearance 0.002mm to 0.013mm
  • Seal Type Open
  • System of Measurement Metric
  • Bearing Type Ball
  • For Load Direction Radial
  • Construction Single Row
  • Inner Ring Type Standard
  • Tolerance Class ABEC1
  • Radial Clearance Trade No MC3
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 32 lbf
  • Static Radial Load 9 lbf
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 85000 rpm
  • Weight 0.2 g
  • Price（$） 11.25
Metric Size Standard Miniature Ball Bearings 691x dimension drawing
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Features

Why Choose 691x Bearing for Precision Tasks?

691x Bearing is crafted with chrome steel rings and balls, ensuring precise radial load handling.
Its compact size of 1.5 mm×5 mm×2 mm makes it ideal for miniature applications.

The stainless steel cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 85,000 rpm, it delivers smooth performance in high-speed scenarios.

691x Bearing operates efficiently within a temperature range of -30° to 110 °C.
Its ABEC1 tolerance class ensures reliable accuracy for precision instruments.

Application

Key Fields for 691x Bearing
The 691x Bearing is commonly used in small-scale industrial equipment, such as precision instruments and miniature motors, where its compact size and radial load capacity are beneficial. Its open design simplifies lubrication, ensuring smooth operation in tight spaces.

What Makes 691x Bearing a Preferred Choice?
In consumer electronics like miniature fans and handheld devices, 691x Bearing provides quiet and efficient performance. Its chrome steel construction ensures durability even in high-speed applications, making it ideal for compact gadgets.

Built for Versatility: 691x Bearing
For automation and robotics, 691x Bearing supports delicate movements in components like small robotic arms or 3D printer parts. The stainless steel cage adds longevity, making it suitable for repetitive tasks in automated systems.

Medical vs Industrial: Where 691x Bearing Excels
In medical devices such as dental tools or lab equipment, 691x Bearing offers precise motion control due to its tight tolerances. Meanwhile, in industrial settings, it handles light radial loads in machinery like small pumps or sensors.

Q&A

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